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feat(pdfengines): optimize PDF images to reduce file size (#359)

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Julien Neuhart
2026-08-13 19:39:09 +02:00
parent 7a730cfdc2
commit 1ac1d9887e
29 changed files with 776 additions and 5 deletions
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20
test/integration/features/chromium_convert_html.feature
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@@ -1187,6 +1187,26 @@ Feature: /forms/chromium/convert/html
Then there should be 1 PDF(s) in the response
Then the response PDF(s) should be flatten
# Post-processing image optimization re-encodes the embedded lossless image to
# JPEG. The same page is ~700 KB without it and well under 300 KB with it.
# See https://github.com/gotenberg/gotenberg/issues/359.
Scenario: POST /forms/chromium/convert/html (Optimize Images)
Given I have a default Gotenberg container
When I make a "POST" request to Gotenberg at the "/forms/chromium/convert/html" endpoint with the following form data and header(s):
| files | testdata/optimize-image-html/index.html | file |
| files | testdata/optimize-image-html/image.png | file |
| Gotenberg-Output-Filename | foo | header |
Then the response status code should be 200
Then the "foo.pdf" file size should be greater than 300 KB
When I make a "POST" request to Gotenberg at the "/forms/chromium/convert/html" endpoint with the following form data and header(s):
| files | testdata/optimize-image-html/index.html | file |
| files | testdata/optimize-image-html/image.png | file |
| optimizeImages | true | field |
| Gotenberg-Output-Filename | foo | header |
Then the response status code should be 200
Then the response header "Content-Type" should be "application/pdf"
Then the "foo.pdf" file size should be less than 300 KB
@encrypt
Scenario: POST /forms/chromium/convert/html (Encrypt - user password only)
Given I have a default Gotenberg container